Rachel Ray Lasagna Pan. I think it worked just as well as any other pan, but it looked much more fabulous!! It's pretty heavy-duty and I expect it to last for a lifetime. It was easy to clean, etc. Did I mention that it matches my kitchen :)
I use the super-easy recipe from Kraft Foods when I make lasagna - you don't even have to precook the noodles - just layer it all and bake.